if `sinx=3/5 , cosy= -12/13` where `pi/2ltxlt pi` and `pi/2ltyltpi ` then show that `sin(x+y) =-56/65`

If sinx=3/5,cosy=-(12)/(13), where x and y both lie in second quadrant, find the value of sin (x + y)dot

If sinA=3/5, cosB=-12/13 , where A in (0,pi/2) B in (pi,(3pi)/2) ,then evaluate the following: i) sin(A-B) ii) cos(A-B) iii) tan(A+B)

If sinA=12/13 and sinB=4/5 where pi/2 < A < pi and 0 < B < pi/2 then find the following (i) sin(A+B) (ii)cos(A+B)

If cos A=4/(5), cosB=12/13 and (3pi)/2 < A, B < 2pi then find the value of cos(A+B)

If cos x-sinx=-(5)/(4) , where (pi)/(2)ltx lt(3pi)/(4) , then cot((x)/(2)) is equal to

If x+y=2pi//3 and sin x//sin y=2 , then the

If sinA=3/5, 0 lt A lt pi/2 and cosB=-12/13, pi lt B lt (3pi)/2 , then find the values of the following: (i) sin(A-B)

If y=(sinx-cosx)^(sinx-cosx) , pi/4 ltxlt (3pi)/ 4 find dy/dx

If y=(sinx-cosx)^(sinx-cosx) , pi/4 ltxlt (3pi)/ 4 find dy/dx

For 0ltxlt(pi)/(2) ,prove that x gt sin x